My code segfaults basically immediately when using -ftree-vectorize. Preprocessed sources are appended. To reproduce, do this: spec/src> /home/bangerth/bin/gcc-4.0-pre/bin/c++ -march=pentium4 -O -ftree-vectorize x.ii -o x spec/src> ./x Segmentation fault This is with mainline CVS as of a few hours ago. W.
-- Summary: Segfault with -ftree-vectorize Product: gcc Version: 4.0.0 Status: UNCONFIRMED Keywords: wrong-code Severity: normal Priority: P2 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: bangerth at dealii dot org CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19716